/*
 * Copyright 2007 Rob Nielsen
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * 	http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.googlecode.proxymatic.core.handlers.method;

import com.googlecode.proxymatic.core.BuildtimeContext;
import com.googlecode.proxymatic.core.MethodHandler;
import com.googlecode.proxymatic.core.MethodInvoker;
import com.googlecode.proxymatic.core.ProxyBuilder;
import com.googlecode.proxymatic.core.util.ReflectUtil;

import java.lang.reflect.Method;

public class MatchingInterfaceMethodHandler implements MethodHandler {

    public MethodInvoker getInvoker(Method method, BuildtimeContext context, ProxyBuilder proxyBuilder) {
        int index = 0;
        for (Class implementationClass : context.getImplementationClasses()) {
            try {
                Method destinationMethod = implementationClass.getMethod(method.getName(), method.getParameterTypes());
                if (method.getReturnType().equals(destinationMethod.getReturnType()) && context.isImplementationAvailableAtRuntime() != ReflectUtil.isStatic(destinationMethod)) {
                    return new PassthroughMethodInvoker(destinationMethod, index);
                }
            } catch (NoSuchMethodException e) {
            }
            index++;
        }
        return NOT_HANDLED;
    }
}
